php - Why is the text ignored by Mysql? -


i have problem php code. problem lies in $_get['id']. can see, output resultset of user matched user id.

the question is, why same result (resultset of user id 1) when enter 2 different values on url?

url 1: url 1

url2: url 2

shouldn't text (randomtext) taken in consideration, because code seems ignore it.

<?php      try {         $db = new pdo('mysql:host=127.0.0.1;dbname=ptp', 'root', 'root');         $db->setattribute(pdo::attr_errmode, pdo::errmode_exception);      } catch (pdoexception $e) {      }     $id = $_get['id'];     $sql = "select * users id = :id";      echo $id . '<br/>';      $query = $db->prepare($sql);      $query->bindparam(':id', $id);     $query->execute();           while($r = $query->fetch(pdo::fetch_assoc)) {             print_r($r);         }      ?>

just php, mysql cast string "1random" int 1. if id field number, query seen "select * users id = 1" if there random text after 1

just try in php : var_dump('1dfg' == 1) return true. it's same in mysql.

however, if try find user id "dfg1", nothing returned because string can't casted int.


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